I have see that Pluto was black and white , these information was given by Horizon in 15th juli

Pluto is Still a planet in my book

What about Eris, Haumea and Make-Make?

To those who doubted Pluto's planetary status, read it and weep

Uhh...do you even know WHY it was demoted? ¬.¬

Because a bunch of astronomers were locked in a room on a hot day and werent allowed to leave until they had voted on a new definition of the word planet. None of the options would have included pluto despite many of them being in favor of its status as a planet. Thats the real reason why.

-.- Because the existence of thousands Trans-Neptunian Kuiper Belt Objects had nothing to do with it, eh?

Look, im just telling you how it happened. You dont have to believe it, nor do you have to call pluto a planet. The actual definition in place is more concerned with the fact that it hasnt cleared its orbit yet, theres nothing wrong with having a couple thousand planets, I for one already consider ceres a full planet as well.

Considering the origin of the word, I feel like making that many TNOs planets is stupid.

But what do I know, I only am studying to be a planetary scientist.

Were you aware that the new definition also excludes everything outside our solar system? So everything from Koriban and Vulcan to the Kepler objects are "officially" not planets. Your field of study will only go so far in this debate, this is about language and language is determined by common use. As it stands pluto is a planet because most of us call it a planet and a rigged decision made at an isolated convention under awkward circumstances wont change that. I could flaunt my numerous high school and college level astronomy classes if I wanted to but in this case my majors and minor in social sciences, language arts and education are far more meaningful.

I love seeing the planets get the attention they deserve <3

Simon is so darned adorable.

Great pic ^_^
You'll like my poem then http://www.furaffinity.net/view/17127492/

I never stopped calling Pluto a planet. Who do the IAU think they are, telling me what I can or can't call something?

Do you consider Ceres a planet? There is no definition that includes Pluto that doesn't include Ceres, (and a whole bunch of other bodies).

Remember that the only reason that Pluto was ever considered a planet was a vast overestimate of its size, (it was thought to be the size of earth, rather than much smaller than the moon).

Earth? I seem to have gotten the impression they thought it might have been a third gas giant. Of course, when they recalculated stuff with Neptune, it became pretty clear how small Pluto was, regardless.

That was simply the size of the planet they were looking for. based on an erroneous analysis of Neptune's orbit. It was very clear that Pluto wasn't anywhere near that big once it was found by the dumb luck of actually being there.

Ah, right. That was it. They underestimated Neptune's mass, right?

Overestimated actually.

Really? I suppose that make sense, but I feel silly for forgetting it.

The scientific group who determines what space rocks are planets and what aren't. Seriously, can ONE of you even show me a legitimate argument against the IAU ruling?

Well, since the last I heard, Pluto had been classified as a "dwarf planet". Since "dwarf planet" contains the word "planet", then I can continue calling it a planet. And since no one can actually force me to call anything what I like, I can call a car an automobile, a horseless carrage or a flimsy-flamsy, if I so choose, especially since all words are a made up collection of sounds with a context attached to them.

I admit, i didnt expect Pluto to 'show' some love with its heart!

Cute little guy :D

I wish Pluto lovers would realize that there's no reason they can't love Pluto even if it's not identified as a planet. It's a big rock in space, why does it matter if it doesn't fit into one tiny human descriptor category?

Actually, in light of New Horizons, you can even say that it's much more interesting without Pluto called a planet. If he would be, then, pfft, just the last planet we have visited, already have the other seven explored, yeeah, who *yawn* cares... But now this is the first time we ever saw an object of the Kuiper belt up close. Come on, that's much cooler than another booring planet

It's all a matter of definition...

...we can visit the Great Red Spot up close if you're feeling like calling Jupiter boring.

already been there 1978, nothing new anymore...

Naah, seriously, Ive read a depressing amount of posts in the net who claimed exacyly that, that it's of no intetest anymore, because a planet is just another planet, they're all alike *facepalm*... among some other rather dumb posts like "waah, too expensive, better use the money for (insert some problem here)" and the braindead "duh, its faked, all done in photoshop" that was among the most daft things I read about New Horizons. Thus I tried to make it sound more interesting, now it's a first, won't matter what it is, it's a *First*!!

Its sad that only a few people seem to notice that the last few years were really amazing times for asyronomical discoveries, 'we' landed a big autonomous vehicle on Mars, landed on a comet, examined the largest object in the asteroid belt and visited Mercury a second and much thoroughly time. And now Pluto and Charon, its really fascinating.

It's all reasonably cool, but I'm looking forward to Juno myself. :D

Wow, I didn't expect this ammount of response.

Everyone else <3 pluto too!

Little world. Big Heart :)

I remember reading that pluto is now confirmed to have something like 37 satellites around it in the oort cloud; big family!:)